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<!--
Bug 1132764 - Test controlling the maximum allocations log length over the RDP.
-->
<head>
  <meta charset="utf-8">
  <title>Memory monitoring actor test</title>
  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<pre id="test">
<script src="memory-helpers.js" type="application/javascript;version=1.8"></script>
<script>
window.onload = function() {
  SimpleTest.waitForExplicitFinish();

  Task.spawn(function* () {
    var { memory, client } = yield startServerAndGetSelectedTabMemory();
    yield memory.attach();

    var allocs = [];
    var eventsFired = 0;
    var intervalId = null;
    function onAlloc () {
      eventsFired++;
    }
    function startAllocating () {
      intervalId = setInterval(() => {
        for (var i = 100000; --i;) {
          allocs.push(new Object());
        }
      }, 1);
    }
    function stopAllocating () {
      clearInterval(intervalId);
    }

    memory.on("allocations", onAlloc);

    yield memory.startRecordingAllocations({
      drainAllocationsTimeout: 10
    });

    yield waitUntil(() => eventsFired > 5);
    ok(eventsFired > 5, "Some allocation events fired without allocating much via auto drain");
    yield memory.stopRecordingAllocations();

    // Set a really high auto drain timer so we can test if
    // it fires on GC
    eventsFired = 0;
    var startTime = performance.now();
    var drainTimer = 1000000;
    yield memory.startRecordingAllocations({
      drainAllocationsTimeout: drainTimer
    });

    startAllocating();
    yield waitUntil(() => {
      Cu.forceGC();
      return eventsFired > 1;
    });
    stopAllocating();
    ok(performance.now() - drainTimer < startTime, "Allocation events fired on GC before timer");
    yield memory.stopRecordingAllocations();

    memory.off("allocations", onAlloc);
    yield memory.detach();
    destroyServerAndFinish(client);
  });
};
</script>
</pre>
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